Bulb/fuel line issue….

[steplift20]

Hey Charlie , before you change the fuel line , did you change the primer bulb? Cause I feel that if its callapsing inside the bulb that would cause it. How old is the bulb? Do you know how old the line it? I dought its the vent since you removed the cap and no differance . Go for the simplest thing first..... The bulb. If you can get a hold of a portable tank. Try useing that and see if the problem goes away. I would wait to see what the big guns say .
I'm just thinking, something is blocking the flow, maybe the pickup tube in the tank is getting blocked, I don't know if there is a screen on the end of the tube that in the tank, see what the phat and spare say .